David Patrick Stearns looks ahead to three cutting-edge events happening simultaneously over the coming weeks in Philadelphia: The Crossing Choir's Month of Moderns Festival, Bowerbird's festival devoted to the music of Morton Feldman (including the composer's six-hour string quartet) and Opera Company of Philadelphia's U.S. premiere of Hans Werner Henze's Phaedra.

Jim Cotter speaks with Christopher O'Riley, pianist and host of the popular national radio program From the Top.